1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2020,2023 The FreeBSD Foundation
5 *
6 * This software was developed by Björn Zeeb under sponsorship from
7 * the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 #ifndef _LINUXKPI_ASM_UNALIGNED_H
32 #define _LINUXKPI_ASM_UNALIGNED_H
33
34 #include <linux/types.h>
35 #include <asm/byteorder.h>
36
37 static __inline uint16_t
get_unaligned_le16(const void * p)38 get_unaligned_le16(const void *p)
39 {
40
41 return (le16_to_cpup((const __le16 *)p));
42 }
43
44 static __inline uint32_t
get_unaligned_le32(const void * p)45 get_unaligned_le32(const void *p)
46 {
47
48 return (le32_to_cpup((const __le32 *)p));
49 }
50
51 static __inline uint64_t
get_unaligned_le64(const void * p)52 get_unaligned_le64(const void *p)
53 {
54
55 return (le64_to_cpup((const __le64 *)p));
56 }
57
58 static __inline void
put_unaligned_le16(__le16 v,void * p)59 put_unaligned_le16(__le16 v, void *p)
60 {
61 __le16 x;
62
63 x = cpu_to_le16(v);
64 memcpy(p, &x, sizeof(x));
65 }
66
67 static __inline void
put_unaligned_le32(__le32 v,void * p)68 put_unaligned_le32(__le32 v, void *p)
69 {
70 __le32 x;
71
72 x = cpu_to_le32(v);
73 memcpy(p, &x, sizeof(x));
74 }
75
76 static __inline void
put_unaligned_le64(__le64 v,void * p)77 put_unaligned_le64(__le64 v, void *p)
78 {
79 __le64 x;
80
81 x = cpu_to_le64(v);
82 memcpy(p, &x, sizeof(x));
83 }
84
85 static __inline uint16_t
get_unaligned_be16(const void * p)86 get_unaligned_be16(const void *p)
87 {
88
89 return (be16_to_cpup((const __be16 *)p));
90 }
91
92 static __inline uint32_t
get_unaligned_be32(const void * p)93 get_unaligned_be32(const void *p)
94 {
95
96 return (be32_to_cpup((const __be32 *)p));
97 }
98
99 static __inline uint64_t
get_unaligned_be64(const void * p)100 get_unaligned_be64(const void *p)
101 {
102
103 return (be64_to_cpup((const __be64 *)p));
104 }
105
106 #endif /* _LINUXKPI_ASM_UNALIGNED_H */
107